Grating machine



May 22, 1945. MOORE 7 2,376,376, 7

GRATING MACHINE Filed Dec. 9, 1942 (marine David Pelton Moore, ForestH ills, N.-Y.,.assignor to Premium Merchandising Corn, New York,

Application Databa- 9, 1942, Serial No. "masse 3 je'olaii s. (01. 146 s) The present invention relates to'improvements in grating machine, thatis to. a machine for grating or ,rasping theouter rind fromcitrus fruits, such as .lemons; grapefruit and oranges, one

object of the invention being the provision of a machine which will act uponthen fruit. fed ina continuous stream thereto, and which will grate the outer rind from'the fruit to a desired depth sojthat such grated rind is in the best possible state for treatment to remove the pectin, pectose,

,pectase, and essential oils'therefrom. 4 l

. Another object of the present invention iswthe provision-of a machine which is adjustable to act upon various sized or graded fruits,--"so that one machine with replaceableparts results, and

one that can speed up production and receive and actuponthe fruit which is fed continuously one at a, time thereto.

Still another object oi'the present invention is the provision of a simple, durable and comparatively inexpensive machine of this type, and

which is thoroughly practical and efficient in use.

In the accompanying drawing- Figure 1 is a cross section through a complete machinemade according to and embodying the present invention.

Figure 2 is a top plan view partially in section and broken away to more clearly show the various component parts.

Referring to the drawing, the numeral l designates a base upon which is mounted four legs or standards 2, each of which is made in two sections 2--2", attached adjustably together at 3, so that the length of the legs may be increased and decreased for various diametered fruits.

An annular ring or base plate 4 is supported by the legs 2, and is provided with the internal lip 5, which forms a supporting bearing for a rotatable disk 6, havin the hoppered inlet concentric opening I through which the fruit is fed to the machine.

A gear 8 is fast to the hopper, and forms the medium through which the disk 6 is rotated, the

'A- bearing support- I 3 has mounted therein -a vertical shaft M, which isiastat its upperend to thelowerabrasive disk I 5,whose abrasive surface l6lishere' 'shown as being slightly depressed at the-center, so as to provide a-space between the two disks 6 and l5 deeperat' its center and gradually narrowing toward the periphery of such space. "IThispermits better actionupon the fruit, and insures :a'better and cleaner grating "of the outer rindfrom 'thefruit, "and a more uniform grated fruit as the same 'is projected by -can-- trifugal force through i the circumferential peripheral space into"th'e"hopper2l.

'Apulley I'I forms one 'm'eans of drive for the shaft Mand'thelower disk l5,rwhile across belt l8 receives its motion from-the shaftul l. and

drives apulley 19 on the lower. section lz'flof the gear drive shaft l2.

It is desirable that the disk 6 be driven in an opposite direction to the disk l5, as indicated by the arrows in Fig. 2, and by the change of the gears 9 and H, the disk 6 may be rotated at selected speeds in accordance with the object to be obtained in grating of the fruit, that is the greater its speed, the more fruit wil be acted upon.

The fruit and gratings receiving hopper may be supported in any desired manner, and is so constructed, as to receive the fruit and gratings at any point of the circumference of the machine and deliver the fruit and gratings either together at one point for separation, or the gratings may be screened simultaneously with the ejection of the fruit into the hopper.

In putting this machine into practice, the legs and the shaft l2 are adjusted to the sorted sized fruit to be acted upon, and the disks are then set inner face 6' of the disk being a grating surface,

either formed integral with the disk or a plate formed with grating means detachably attached 7 to and carried by the disk. This disk is rotated in the direction of the arrow, Fig. 2, through the medium of the gear 9 carried by the gearing casing H3, and this gear meshes with a gear I I, carried upon the upper end of the vertical shaft 42, which is made in two section l2--I2", attached by the adjusting sleeve 20, and the purpose of which is to provide for the vertical adjustment of the abrasive disk 6, as will presently appear. a

in motion. The fruit should be thoroughly washed and dried before being fed one at a time into the hopper 1. Proper delivery means is to be provided to insure a continuous feed of the fruit to the machine, and with 3 inch fruit and 42 inch disks, rotated at R. P. M. not less than 12 fruit to a second can be grated and delivered into the hopper 2|.

' Inasmuch as the grated outer rind, the depth of which is determined by the distance that the disks 6 and I5 are separated, is of a uniform size, it needs no further comminuting, and is ready as it leaves the niachine to be treated to extract the pectin, pectose, and pectase, or any of the essential oils that may be desired, and which form part of such rind.

The grated fruit is ejected as white globes, and

is ready for juicing, sectioning or may be shipped as is, for use in the home or for juicing locally. By this method, the fruit issanitary, as the rind combination vertically adjustable supporting means, an annular member carried thereby, a

rotary disk mounted in and carried by the annular member, a secondary rotary disk mounted below and spaced from the first disk and pro claim 2, wherein the means connecting the second shaft to the first disk includes a gear connected to the upper central portion of the first disk adjacent the adit opening, a vertical shaft operably connected to the second disk operating shaft, and gears connecting the upper end of such vertical shaft to the first gear. t

, 4. A .f rllit rind grating machine, including in combinations. supporting structure, an annular supportingnisk mounted upon the supporting structure, a grating disk mounted for rotation in said annular disk and provided with a central adit opening for the fruit, a concentrically disposed viding therewith a fruit receiving space, said first disk being provided with a concentric fruit adit opening, and means for rotating the disks taneously but in opposite directions.

2. A fruit rind grating machine comprising a base, a plurality of vertically adjustable supports mounted thereon, an annular base plate support ed at the upper ends of said supports, an abrasive disk mounted in said base plate for rotary movement, a second abrasive disk disposed below and in spaced relation to the first disk, the first disk being provided with a central-fruit adit opening leading into said space, the vertical adjustment of the supports regulating the size of the space between the 'disks to accommodate various sized fruits, a main shaft for rotating the second disk,

a second shaft operatively connected to the main simul-.

shaft, and means connecting the second shaft to the first disk, whereby the first disk is rotated in a, direction opposite to but simultaneously with the second disk.

3. A fruit ring grating machine as claimed in main shaft having its upper end spaced from the grating disk, asecond grating disk bodily supported by the said main shaft and having its grating surface opposed to and spaced from the first grating disk to provide a peripherally disposed outlet for the grated fruit and grated rind, and means for driving the first grating disk from the main shaft.

5. A fruit rind grating machine as claimed in claim 4, wherein the latter means includes a fruit directing hopperconcentrically of the adit opening, a gear attached to and surroundingsaid hopper, and gears o-perably connected to said latter gear and the main shaft, whereby the two disks are rotated simultaneously in opposite directions.

6. A fruit rind grating machine as claimed in claim 4, wherein an annular fruit and rind receiving hopper is disposed below the annular supporting disk and has an apron extending above the upper face of the second grating diskto receive the fruit and grated rind expelled through the peripheral space between the two grating disks.-

DAVID PELTON MOORE. 

